JPS5731204A - Antenna - Google Patents

Antenna

Info

Publication number
JPS5731204A
JPS5731204A JP10644580A JP10644580A JPS5731204A JP S5731204 A JPS5731204 A JP S5731204A JP 10644580 A JP10644580 A JP 10644580A JP 10644580 A JP10644580 A JP 10644580A JP S5731204 A JPS5731204 A JP S5731204A
Authority
JP
Japan
Prior art keywords
slot
conductor
directive properties
thin plate
mode resonance
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP10644580A
Other languages
Japanese (ja)
Inventor
Masatada Hata
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Oki Electric Industry Co Ltd
Original Assignee
Oki Electric Industry Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Oki Electric Industry Co Ltd filed Critical Oki Electric Industry Co Ltd
Priority to JP10644580A priority Critical patent/JPS5731204A/en
Publication of JPS5731204A publication Critical patent/JPS5731204A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
    • H01Q13/10—Resonant slot antennas
    • H01Q13/18—Resonant slot antennas the slot being backed by, or formed in boundary wall of, a resonant cavity ; Open cavity antennas

Landscapes

  • Waveguide Aerials (AREA)
  • Details Of Aerials (AREA)

Abstract

PURPOSE:To obtain a miniature and light-weight antenna with its vertical face directive properties formed into a desired pattern, by causing the TM11 mode resonance on a conductor thin plate and then forming an asymmetrical slot between a conductor substrate and the conductor thin plate. CONSTITUTION:A circular conductor thin plate 5 with a radius selected at a measurement to cause the TM11 mode resonance is set into a circular cavity of a conductor substrate 6 so as to form a ring-shaped slot. Then the high frequency electric power is supplied to the plate 5 from an energizing source via a connector 3 and a conductor bar 4. Thus the directive properties is also secured in the vertical direction by the coexistence of the directive properties of radiation caused by the TM11 mode resonance and the directive properties of radiation caused by the slot. Furthermore the plat 5 is attached with eccentricity to the center of the circular cavity provided at the substrate 6, and a slot 7 is set wider than a slot 8. At the same time, the intensity of electric field radiated from the slot 8 is set less intensive than that from the slot 7 to secure the directive properties deflected to the left.
JP10644580A 1980-08-04 1980-08-04 Antenna Pending JPS5731204A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10644580A JPS5731204A (en) 1980-08-04 1980-08-04 Antenna

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10644580A JPS5731204A (en) 1980-08-04 1980-08-04 Antenna

Publications (1)

Publication Number Publication Date
JPS5731204A true JPS5731204A (en) 1982-02-19

Family

ID=14433812

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10644580A Pending JPS5731204A (en) 1980-08-04 1980-08-04 Antenna

Country Status (1)

Country Link
JP (1) JPS5731204A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5798734A (en) * 1995-10-06 1998-08-25 Mitsubishi Denki Kabushiki Kaisha Antenna apparatus, method of manufacturing same and method of designing same
EP1033782A2 (en) * 1999-03-02 2000-09-06 Matsushita Electric Industrial Co., Ltd. Monopole antenna

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5798734A (en) * 1995-10-06 1998-08-25 Mitsubishi Denki Kabushiki Kaisha Antenna apparatus, method of manufacturing same and method of designing same
EP1033782A2 (en) * 1999-03-02 2000-09-06 Matsushita Electric Industrial Co., Ltd. Monopole antenna
EP1033782A3 (en) * 1999-03-02 2003-08-06 Matsushita Electric Industrial Co., Ltd. Monopole antenna

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